dmd.e2ir

Converts expressions to Intermediate Representation (IR) for the backend.

Authors

Walter Bright

License

Boost License 1.0

Source: e2ir.d

Documentation: https://dlang.org/phobos/dmd_e2ir.html

Coverage: https://codecov.io/gh/dlang/dmd/src/master/src/dmd/e2ir.d

  • elAssign

    Declaration

    elem* elAssign(elem* e1, elem* e2, Type t, type* tx);

    Generate a copy from e2 to e1.

    Parameters

    elem* e1

    lvalue

    elem* e2

    rvalue

    Type t

    value type

    type* tx

    if !null, then t converted to C type

    Return Value

    generated elem

  • type_zeroCopy

    Declaration

    bool type_zeroCopy(type* t);

    Determine if zero bits need to be copied for this backend type

    Parameters

    type* t

    backend type

    Return Value

    true if 0 bits

  • toStringSymbol

    Declaration

    Symbol* toStringSymbol(const(char)* str, size_t len, size_t sz);

    Write read-only string to object file, create a local symbol for it. Makes a copy of str's contents, does not keep a reference to it.

    Parameters

    const(char)* str

    string

    size_t len

    number of code units in string

    size_t sz

    number of bytes per code unit

    Return Value

    Symbol

  • toStringSymbol

    Declaration

    Symbol* toStringSymbol(StringExp se);

    Turn StringExp into Symbol.

  • toTraceGC

    Declaration

    void toTraceGC(IRState* irs, elem* e, const ref Loc loc);

    Replace call to GC allocator with call to tracing GC allocator.

    Parameters

    IRState* irs

    to get function from

    elem* e

    elem to modify in place

    Loc loc

    to get file/line from

  • toElemDtor

    Declaration

    elem* toElemDtor(Expression e, IRState* irs);

    Convert Expression to elem, then append destructors for any temporaries created in elem.

    Parameters

    Expression e

    Expression to convert

    IRState* irs

    context

    Return Value

    generated elem tree

  • addressElem

    Declaration

    elem* addressElem(elem* e, Type t, bool alwaysCopy = false);

    Take address of an elem. Accounts for e being an rvalue by assigning the rvalue to a temp.

    Parameters

    elem* e

    elem to take address of

    Type t

    Type of elem

    bool alwaysCopy

    when true, always copy e to a tmp

    Return Value

    the equivalent of &e

  • clearStringTab

    Declaration

    void clearStringTab();

    Reset stringTab[] between object files being emitted, because the symbols are local.

  • toElem

    Declaration

    elem* toElem(Expression e, IRState* irs);

    Convert Expression to backend elem.

    Parameters

    Expression e

    expression tree

    IRState* irs

    context

    Return Value

    backend elem tree